Bob Ballard

Five facts about the ocean I didn't know: 

1.) more exploration in the Southern Hemisphere during Captain Cook's time, rather than current day. 

2.) there's better maps of mars than out own. 

3.) ocean ridge covers 20% of the world. 

4.) Rift Valley is 9,000ft in depth. 

5.) more active volcanos under the sea, than above it. 

+3 more facts:

6.) seashells are on Mt. Everest. 

7.) lost city is made up of leaf and had pH of 11. 

8.) methan volcanos in Gulf of Mexico. 

Why I think Bob Ballard thinks it's important to explore the ocean: I think his reasoning is because the ocean makes up most of this planet and it's important to explore it to find out what lies beneath. 

His main message: to explore the ocean and maybe end up building structures on the water for human life to inhabit.